Figure 2.

Molecular Mechanisms Affected by G-Quadruplexes (G4s) in Microorganisms. The functional roles of G4s identified in microbes are included in this graph. The segments in the outermost circle (blue) denote the molecular biological processes regulated by G4s. The segments of the intermediate circle (orange) indicate the types of microbe affected for each biological process (see the legend beside the graph). The specific microorganism under each type is denoted either by an abbreviation (for viruses) or a three-letter notation (for bacteria and parasites) in the vertical bars in the innermost circle (see the legend beside the graph). The vertical bars in the innermost circle are colour-coded for bacteria (green), viruses (red), and parasites (black). The curved lines connect a given microbe with multiple quadruplex-regulated biological processes. Red curved lines connect viruses, and blue curved lines connect parasites.